Method of making sheet glass



1931. ML. BEGEMAN 1,817,055

METHOD OF MAKING SHEET GLASS Filed May 21, 1929 Patented Aug. 4, 1931 UNITED STATES, PATENT OFFICE MYRON L. BEGEMAN, OF'ST,.LOUIS, MISSOURI, ASSIGNOR T MISSISSIPPI GLASS COM- rnuY, or NEW YORK, N. Y., a

CORPORATION OF NEW YORK METHOD OF -MAKIN G SHEET GLASS Application filed May 21,

The object of this invention is to disclose an improved method of regulating the flow of glass to the forming rolls, the How being controlled between a gate and a roll instead of between a gate and the furnace lip, as is customary.

This method permits bringing the point of control close to the roll pass, and is more positive when a very small flow is required because the motion of the roll tends to keep the slot open.

Further and other objects and advantages will be apparent from the specification and claims, and from the drawings which show by way of illustration what is now considered the preferred form of the invention.

Fig. 1 is a diagrammatic cross-section showmg the invention applied to the manufacture of figured glass by the single pour process. I

Fig. 2 is a diagrammatic cross-section showing the invention applied to the manufacture of wire glass by the two-pour process.

In Fig. 1 the lower figured roll is desigs 5 nated and the upper roll is 12. Molten metal 14 flows from the left over furnace lip 16 onto the upper surface of roll 10. Above roll 10, between lip 16 and roll 12, is the gate 18, preferably adjustable as by wheel 17, set to control the flow of metal to the forming pass between the rolls, thereby forming a preliminary sheet before the pass is reached. A shut-ofi' gate %0 is provided above lip 16 in order to stop a lfiow when desired. The glass sheet 22 after over apron 24. In this modi cation of the invention itwill be noted that gate 18 serves not only to regulate the flow of metal between its lower edge and roll 10, but also serves to 0 shield upperroll 12 from the heat of the furnace.

In Fig. 2 the invention the making of wire glass by the two-pour process. In this arrangement the formin 5 rolls and 32 are placed side by side, an

being formed, asses to the leer is shown applied to 1929. Serial No. 364,754.

the wire mesh 34 is fed downwardly midway between the rolls. A half-sheet 36 is formed at the left between roll 30 and gate, 38, and another half-sheet 40 is formed at the right between roll 32 and gate 42. The half-sheets are of substantially half the thickness of the sheet to be, produced. They are carried on rolls 30 and 32 to the pass between the rolls, Where they are welded together to form the finished sheet 44 with wire 34 in the middle of the sheet. For clarity of illustration, gates 38 and 42 have. been placed well away from the bight of the rolls, but the gates may be located wherever desired between the furnace lip and the roll pass, so as to give any desired degree of chill to the half-sheets before they reach the pass.

It is to be understood that the invention is not limited to the specific construction and embodiment herein described, but may be used in other ways without departure from its spirit as defined by the following claims.

I claim 1.. In apparatus for making sheet glass, a pair of forming rolls,.means for feeding molten metal onto each of said rolls, a nonrotatable member adjacent each of said rolls whereby a sheet of metal is formed on each roll, and means for conducting said sheets between said rolls whereby they are welded together to form a finished sheet.

2. The invention set forth in claim- 1 in which means is provided for feeding wire between said rolls whereby the wire becomes embedded in the finished sheet, substantially as described.

3. In apparatus for making sheet glass, in combination, a pair of horizontal forming rolls side by side, means for feeding molten metal onto the upper surfaces of said rolls, an adjustable nonrotatable member adjacent each of said rolls whereby as said rolls rotate a sheet of metal is formed on each roll, the continued rotation of said rolls acting to carry said sheets between said rolls thereby uniting the two sheets into a/finished sheet of desired thickness.

4. The invention set forth-in claim 3 in which means is provided for feeding wire 5 mesh midway betweenseid rolls while the' finished sheet is being formed, whereby the vilrlire is embedded in the middle of the finished s eet.

In testimony whereof I hereto afiix my signature; MYRON L. BEGEMAN. 

